1,2,3,5,7,8-Hexachloronaphthalene, 1.2ml x 50ug/ml, nonane

Ethanol standard in serum,0.2g/L,serum, 1.5mL

Benzo[a]pentacene (in vial for quick-preparation of solution), neat, Solvent-neat, Unit ca. 100µg, # of units-1, Cas.no. 239-98-5

N-methylperfluoro-1-octanesulfonamidoacetic acid isomeric mixture, 1.2ml x 50ug/ml, methanol